SOLUTION: These two equations are perpendicular to one another. y = x – 1 y = -x + 1 What can you do to determine if the point (1, 0) is the point where they intersect?     a) Test

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Question 1072008: These two equations are perpendicular to one another.
y = x – 1
y = -x + 1
What can you do to determine if the point (1, 0) is the point where they intersect?
 
 
a) Test (1, 0) in both equations to see if it is a solution in both.
b) Graph the two equations and see if they intersect at (1, 0).
c) Find the x-intercept for both equations and see if it is (1, 0) in both cases.
d) all of the above
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Set them equal to each other.
x-1=-x%2B1
2x=2
x=1
Now find y by using x=1 in either equation and solving for y.
.
.
.
For the x-intercept, set y=0 and solve for x.
I'll do one, you do the other.
y=0-1
y=-1
(0,-1)
Do the other line the same way.